SNMP objects

Applies To: Windows Server 2008, Windows Server 2008 R2

You can use Simple Network Management Protocol (SNMP) to configure remote devices, monitor network performance, audit network usage, and detect network faults or inappropriate access.

SNMP uses a distributed architecture consisting of managers and agents:

  • A manager generates queries to the SNMP agent applications and receives objects from SNMP agent applications.

  • An agent responds to queries from SNMP manager applications. The SNMP agent is responsible for retrieving and updating local management information based on the requests of the SNMP manager. The agent also notifies registered managers when significant events or traps occur.

Windows Media Services provides support for SNMP-based management consoles through an extensive set of SNMP objects. These objects are defined in the Windows Media Services SNMP management information base file WMSSNMP.mib, which is located on your Windows Media server in %windir%Windows Media\Server.

To use Windows Media Services SNMP objects, you must first register the DLL Wmssnmp.dll.

To register Windows Media Services SNMP objects for SNMP monitoring

  1. Click Start, and then click Run.

  2. Type the following in the Run dialog box:
    regsvr32 "%windir%\windows media\server\wmssnmp.dll"

    A message box is displayed after the DLL registration has completed.

  3. Click OK to close the message box.

After registering Wmssnmp.dll, you should configure your server to use Internet Protocol security (IPSec) for SNMP data transfers. SNMP transfers data in clear text, which means that the data could be intercepted and decoded by network analyzers. IPSec encrypts data and communications between the SNMP agent and management stations, so the information is safer from interception.

If you decide to use IPSec for SNMP data transfers, you should create an IPSec policy on your computer that filters data transferred on both User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) ports 161 and 162 and that uses Kerberos authentication.

Note

SNMP services are not installed by default on Windows Server operating systems. Before trying to use Windows Media Services SNMP objects, ensure that SNMP services are installed on your computer.
The default settings for SNMP service access in Windows Server operating systems prevent unauthorized access to your server. If you are using SNMP to monitor a local server, you do not need to change the SNMP service settings. If you plan to use SNMP objects to monitor your server from another computer, you must authorize remote access to your SNMP service by configuring the SNMP Services Properties settings on the Windows Media server to accept SNMP packets from the remote computer.

See Also

Concepts

Windows Media SNMP objects reference

Other Resources

Microsoft SNMP Services